EP 1249695 B1 20060301 - Active pulsation cancellation device for diesel particulate sampling systems
Title (en)
Active pulsation cancellation device for diesel particulate sampling systems
Title (de)
Aktive Druckschwingungsdämpfer zur Probenentnahme von Teilchen aus Dieselmotorabgasen
Title (fr)
Dispositif actif de suppression des impulsions de pression pour un système d'échantillonnage de particules diesel
Publication
Application
Priority
US 28387701 P 20010413
Abstract (en)
[origin: EP1249695A2] The present invention relates to a particulate sampler (10) for conveying exhaust gas from exhaust gas source to analysis equipment, said particulate sampler comprising: a probe (14) for receiving the exhaust gas; a transfer tube (12) for conveying the exhaust gas from a tailpipe (13) to a mixer (16), said mixer (16) mixing the exhaust gas and a dilution gas; and a dilution tunnel (18) for mixing and conveying the exhaust gas and dilution gas from said mixer (16) to analysis equipment. <??>In order to minimize the effects of pressure fluctuations said particulate sampler further comprises a flow pulsation cancellation device (20) in communication with at least one of said tailpipe (13), probe (14), transfer tube (12), mixer (16), and a dilution tunnel (18) for introducing a canceling pressure pulse to minimize the effects of pressures pulses present within the tailpipe (13). <IMAGE>
IPC 8 full level
G01N 1/02 (2006.01); G01N 1/22 (2006.01); F01N 3/00 (2006.01); F02B 77/08 (2006.01)
CPC (source: EP US)
G01N 1/2252 (2013.01 - EP US); G01N 1/2202 (2013.01 - EP US); G01N 2001/2223 (2013.01 - EP US); G01N 2001/2264 (2013.01 - EP US)
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
EP 1249695 A2 20021016; EP 1249695 A3 20031119; EP 1249695 B1 20060301; DE 60209466 D1 20060427; DE 60209466 T2 20060824; JP 2003014593 A 20030115; JP 3737776 B2 20060125; US 2002157482 A1 20021031; US 6823748 B2 20041130
DOCDB simple family (application)
EP 02450084 A 20020411; DE 60209466 T 20020411; JP 2002111782 A 20020415; US 12215402 A 20020412